package com.tiantian.web.controller.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import com.tiantian.cache.user.LocalCacheUtil;
import com.tiantian.cache.user.UserInfoCache;
import com.tiantian.cache.user.UserInfoImpl;

public class UserInfoInitInterceptor implements HandlerInterceptor {
	public static final String SESSION_USERINFO = "session_userInfo";

	@Override
	public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3) throws Exception {
		LocalCacheUtil.clear();

	}

	@Override
	public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, ModelAndView arg3) throws Exception {
		// TODO Auto-generated method stub

	}

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object arg2) throws Exception {
		Object sessionObj = request.getSession().getAttribute(SESSION_USERINFO);
		if (sessionObj != null) {
			if (sessionObj instanceof UserInfoImpl) {
				UserInfoImpl user = (UserInfoImpl) sessionObj;
				UserInfoCache.put(user);
				return true;
			}
		}
		response.sendRedirect(request.getContextPath() + "/tologin");
		return false;
	}

}
